Duble menus

Hello, i tryed tore-make my blog how he was before my changes from 23-28 Jan, using an "export" i've made in 22. I erased all the pages, but when i have imported the old blog, every menu has dublated. please hel me with this isue, is bery important for our business. contact [email redacted] (curious little Elephant :) ) and +40723503294 Adrian Decu.
Best regards,
Adrian